Abstract:

To explore a comprehensive,clean and integrated utilization of lignite,the theory of lignite liquefaction and influencing factors are analyzed,and the staged conversion technology of lignite that part of lignite is liquefied and the residual char is gasified combining with the wet gasification is proposed.The result shows that the lignite is very active in hydrogenation liquefaction.By combining the technology of gasification and liquefaction,lignite can be utilized efficiently.